proper distance

proper distance
истинное расстояние

English-Russian cartography dictionary. 2013.

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  • Distance measures (cosmology) — Physical cosmology Universe · Big Bang …   Wikipedia

  • Proper acceleration — [Edwin F. Taylor John Archibald Wheeler (1966 1st ed. only) Spacetime Physics (W.H. Freeman, San Francisco) ISBN 0 7167 0336 X] is the physical acceleration experienced by an object. It equals the rate of change of proper velocity with respect to …   Wikipedia

  • Proper motion — The proper motion of a star is its angular change in position over time as seen from the center of mass of the solar system.[1] It is measured in seconds of arc per year, arcsec/yr, where 3600 arcseconds equal one degree.[2] This contrasts with… …   Wikipedia

  • Proper time — In relativity, proper time is time measured by a single clock between events that occur at the same place as the clock. It depends not only on the events but also on the motion of the clock between the events. An accelerated clock will measure a… …   Wikipedia

  • Proper velocity — η.In flat spacetime, proper velocity is the ratio between distance traveled relative to a reference map frame (used to define simultaneity) and proper time τ elapsed on the clocks of the traveling object. It equals the object s momentum p divided …   Wikipedia

  • Proper length — In relativistic physics, proper length is an invariant quantity which is the rod distance between spacelike events in a frame of reference in which the events are simultaneous. (Unlike classical mechanics, simultaneity is relative in relativity.… …   Wikipedia

  • Distance — This article is about distance in the mathematical or physical sense. For other senses of the term, see distance (disambiguation). Proximity redirects here. For the 2001 film, see Proximity (film). Distance (or farness) is a numerical description …   Wikipedia

  • distance — /ˈdɪstəns / (say distuhns), /ˈdɪstns / (say distns) noun 1. the extent of space intervening between things or points. 2. the state or fact of being distant, as of one thing from another; remoteness. 3. the interval between two points of time. 4.… …  

  • Proper frame — A proper frame, or comoving frame, is a frame of reference that is attached to an object. The object in this frame is stationary within the frame, which is useful for many types of calculations. For example, a freely falling elevator is a proper… …   Wikipedia

  • Comoving distance — Physical cosmology Universe · Big Bang …   Wikipedia

  • Angular diameter distance — The angular diameter distance is a distance measure used in astronomy. The angular diameter distance to an object is defined in terms of the object s actual size, x, and heta the angular size of the object as viewed from earth. d A= frac{x}{… …   Wikipedia


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